1. Grub Configuration syntax and semantics GRUB uses a special syntax for specifying disk drives which can be accessed by BIOS. Because of BIOS limitations, GRUB cannot distinguish between IDE, ESDI, SCSI, or others. You must know yourself which BIOS device is equivalent to which OS...
You can display the current kernel parameters values by using the ‘sysdef -i’ command.
Beginners Lessons / Linux Beginners Guides / Solaris Beginners Guides / Unix Beginners
by Ramdev · Published April 15, 2021
1. What is RAID? RAID is an acronym for Redundant Array of Independent Disks. A RAID system consists of an enclosure containing a number of disk volumes, connected to each other and to one or more computers by a fast interconnect. Six levels of RAID are...
Unix Intermediate / VxVM - How to / VxVM Fundamentals / VxVM Learning
by Ramdev · Published April 14, 2021
Creates a new volume by taking one or more attached temporary mirrors (with state SNAPDONE) to use as its plexes. The nmirror= number attribute can be used to specify the number of mirrors in a snapshot volume. At least number SNAPDONE plexes must be available in...
When the system boots up, it queries for the default runlevel, which is defined in the /etc/inittab file. When that default runlevel is located, the system boots into that particular runlevel. The different runlevels are essentially “states,” which allow services to be started or stopped depending...
Blog for Unix Admin / Solaris Admin / Solaris Troubleshooting / SUN Hardware
by Ramdev · Published April 11, 2021
Step 1) What is exact cause of system hang (system, RSC, network)
What is a patch? A patch fixes problems that prevent the proper execution of software. It is a collection of files and directories that replace or update existing files/binaries and directories. The entire OS is installed as a collection of Solaris packages. It is done during...
For Solaris 8 hosts the common multipathing product is VxDMP or EMC PowerPath. And for Solaris 10 hosts it can be MPxIO (the majority), VxDMP or EMC PowerPath. It is important to note that both VxDMP and MPxIO can be active at the same time;...
Blog for Unix Admin / Solaris Admin / Solaris Disk Management / SUN Hardware / Veritas Administration for unixadmin / VxVM Learning
by Ramdev · Published April 8, 2021
Hot swapping of a failed disk is fairly straight procedure if the disks are regular SCSI disks, but for the Fibre Channel (FC) disks we should follow different procedure for hot swaping. Below specific procedure should be used when replacing one of the internal disks in...
Blog for Unix Admin / Solaris Admin / Solaris Troubleshooting / SUN Hardware
by Ramdev · Published April 8, 2021
System Administrators encounter frequent issues with onboard PCI slots after the maintenance operations like the OS upgrades, patch installations and firmware upgrades. And often it will leave us in a situation that we couldn’t boot up the machine, because of the issues to recognize PCI slots after...
Plugin by Social Author Bio
More
Get every new post delivered to your Inbox
Join other followers
